Cannot download content onto My Kobo with adobe digital editions

I have windows 10 and am completely unable to download library content to

my Kobo glo. I have uninstalled and reinstalled adobe digital editions. I

have restarted my computer. I have tried to go back to adobe 3 rather than

4.5.

I have messed with the network keys, I de-authorized and re-authorized my

account. I have no idea what to try next.

please help